/*
 * APITable <https://github.com/apitable/apitable>
 * Copyright (C) 2022 APITable Ltd. <https://apitable.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.apitable.core.support.tree;

import java.util.List;

/**
 * <p>
 * interface: the tree node's behavior.
 * </p>
 */
public interface Tree {

    /**
     * get the node's id.
     *
     * @return node id
     */
    String getNodeId();

    /**
     * get the parent node's id.
     *
     * @return the parent node id
     */
    String getNodeParentId();

    /**
     * get the child nodes.
     *
     * @return the list of children nodes
     */
    List getChildrenNodes();

    /**
     * set children node.
     *
     * @param childrenNodes the list of children nodes
     */
    void setChildrenNodes(List childrenNodes);
}
